@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap";
:root{--tech-blue:#006eff;--tech-blue-hover:#0058cc;--tech-blue-light:#006eff14;--tech-blue-glow:#006eff40;--dark-navy:#0f172a;--dark-navy-light:#1e293b;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--text-white:#fff;--bg-primary:#f8fafc;--bg-card:#fff;--bg-sidebar:#0f172a;--bg-sidebar-hover:#1e293b;--bg-sidebar-active:#2563eb;--bg-input:#f1f5f9;--bg-overlay:#0f172ab3;--border-light:#0000000d;--border-default:#e2e8f0;--border-focus:#006eff;--success:#10b981;--success-light:#10b9811a;--warning:#f59e0b;--warning-light:#f59e0b1a;--danger:#ef4444;--danger-light:#ef44441a;--info:#3b82f6;--info-light:#3b82f61a;--radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 1px 3px #0000000a;--shadow-md:0 10px 30px #0000000a;--shadow-lg:0 20px 40px #006eff1f;--shadow-xl:0 25px 50px #0000001a;--transition:all .3s cubic-bezier(.4, 0, .2, 1);--transition-fast:all .15s cubic-bezier(.4, 0, .2, 1);--transition-slow:all .5s cubic-bezier(.4, 0, .2, 1);--font-family:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--sidebar-width:260px;--sidebar-collapsed:72px;--navbar-height:64px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}a{color:inherit;transition:var(--transition-fast);text-decoration:none}img{max-width:100%;display:block}button{cursor:pointer;font-family:var(--font-family);background:0 0;border:none;outline:none}input,textarea,select{font-family:var(--font-family);border:none;outline:none}ul,ol{list-style:none}h1{letter-spacing:-.02em;font-size:2.5rem;font-weight:800;line-height:1.2}h2{letter-spacing:-.01em;font-size:2rem;font-weight:700;line-height:1.3}h3{font-size:1.5rem;font-weight:700;line-height:1.4}h4{font-size:1.25rem;font-weight:600;line-height:1.4}h5{font-size:1.125rem;font-weight:600;line-height:1.5}h6{font-size:1rem;font-weight:600;line-height:1.5}.text-gradient{background:linear-gradient(135deg, var(--tech-blue), #7c3aed);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.btn{border-radius:var(--radius-sm);transition:var(--transition);white-space:nowrap;justify-content:center;align-items:center;gap:8px;padding:10px 24px;font-size:.875rem;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn-primary{background:var(--tech-blue);color:var(--text-white);box-shadow:0 4px 14px #006eff4d}.btn-primary:hover{background:var(--tech-blue-hover);transform:translateY(-1px);box-shadow:0 6px 20px #006eff66}.btn-secondary{background:var(--bg-input);color:var(--text-primary)}.btn-secondary:hover{background:#e2e8f0}.btn-outline{color:var(--tech-blue);border:1.5px solid var(--tech-blue);background:0 0}.btn-outline:hover{background:var(--tech-blue);color:var(--text-white)}.btn-danger{background:var(--danger);color:var(--text-white)}.btn-danger:hover{background:#dc2626;transform:translateY(-1px)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{background:var(--bg-input);color:var(--text-primary)}.btn-sm{padding:6px 14px;font-size:.8125rem}.btn-lg{padding:14px 32px;font-size:1rem}.btn-xl{border-radius:var(--radius-md);padding:16px 40px;font-size:1.125rem}.btn-icon{border-radius:var(--radius-sm);width:36px;height:36px;padding:8px}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.card{background:var(--bg-card);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);border:1px solid var(--border-light);transition:var(--transition);overflow:hidden}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.card-flat{background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-default);transition:var(--transition)}.card-glass{background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-default)}.input-group{flex-direction:column;gap:6px;display:flex}.input-group label{color:var(--text-primary);font-size:.875rem;font-weight:600}.input{background:var(--bg-input);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);transition:var(--transition-fast);border:1.5px solid #0000;padding:10px 14px;font-size:.9375rem}.input:focus{border-color:var(--tech-blue);background:var(--bg-card);box-shadow:0 0 0 3px var(--tech-blue-light)}.input-error{border-color:var(--danger)!important;box-shadow:0 0 0 3px var(--danger-light)!important}.input-help{color:var(--text-muted);font-size:.8125rem}.input-error-text{color:var(--danger);font-size:.8125rem}textarea.input{resize:vertical;min-height:100px}select.input{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;padding-right:36px}.badge{border-radius:var(--radius-full);align-items:center;padding:4px 10px;font-size:.75rem;font-weight:600;line-height:1;display:inline-flex}.badge-primary{background:var(--tech-blue-light);color:var(--tech-blue)}.badge-success{background:var(--success-light);color:var(--success)}.badge-warning{background:var(--warning-light);color:var(--warning)}.badge-danger{background:var(--danger-light);color:var(--danger)}.badge-info{background:var(--info-light);color:var(--info)}.badge-neutral{background:var(--bg-input);color:var(--text-secondary)}.table-container{border-radius:var(--radius-lg);border:1px solid var(--border-default);overflow-x:auto}.table{border-collapse:collapse;width:100%}.table th{text-align:left;color:var(--text-secondary);background:var(--bg-input);border-bottom:1px solid var(--border-default);white-space:nowrap;padding:12px 16px;font-size:.8125rem;font-weight:600}.table td{color:var(--text-primary);border-bottom:1px solid var(--border-light);padding:12px 16px;font-size:.875rem}.table tbody tr{transition:var(--transition-fast)}.table tbody tr:hover{background:var(--tech-blue-light)}.table tbody tr:last-child td{border-bottom:none}.modal-overlay{background:var(--bg-overlay);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-card);border-radius:var(--radius-xl);width:90%;max-width:560px;max-height:85vh;box-shadow:var(--shadow-xl);padding:32px;animation:.3s slideUp;overflow-y:auto}.modal-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.modal-header h3{font-size:1.25rem}.modal-close{border-radius:var(--radius-sm);width:32px;height:32px;color:var(--text-muted);transition:var(--transition-fast);justify-content:center;align-items:center;display:flex}.modal-close:hover{background:var(--bg-input);color:var(--text-primary)}.modal-footer{border-top:1px solid var(--border-light);justify-content:flex-end;gap:12px;margin-top:24px;padding-top:20px;display:flex}.layout-wrapper{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);height:100vh;color:var(--text-white);z-index:100;transition:var(--transition);flex-direction:column;display:flex;position:fixed;top:0;left:0;overflow-y:auto}.sidebar-header{border-bottom:1px solid #ffffff0f;align-items:center;gap:12px;padding:20px 24px;display:flex}.sidebar-logo{color:var(--text-white);font-size:1.25rem;font-weight:800}.sidebar-logo span{color:var(--tech-blue)}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:16px 12px;display:flex}.sidebar-link{border-radius:var(--radius-sm);color:#fff9;transition:var(--transition-fast);align-items:center;gap:12px;padding:10px 16px;font-size:.875rem;font-weight:500;display:flex}.sidebar-link:hover{color:var(--text-white);background:var(--bg-sidebar-hover)}.sidebar-link.active{color:var(--text-white);background:var(--bg-sidebar-active)}.sidebar-link .icon{text-align:center;width:20px;font-size:1rem}.sidebar-section{text-transform:uppercase;letter-spacing:.1em;color:#ffffff4d;padding:16px 16px 8px;font-size:.6875rem;font-weight:700}.sidebar-footer{border-top:1px solid #ffffff0f;padding:16px 12px}.main-content{margin-left:var(--sidebar-width);min-height:100vh;transition:var(--transition);flex:1}.topbar{height:var(--navbar-height);border-bottom:1px solid var(--border-default);z-index:50;background:#fff;justify-content:space-between;align-items:center;padding:0 32px;display:flex;position:sticky;top:0}.topbar-left,.topbar-right{align-items:center;gap:16px;display:flex}.page-content{padding:32px}.page-header{margin-bottom:32px}.page-header h1{font-size:1.75rem;font-weight:700}.page-header p{color:var(--text-secondary);margin-top:4px}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-bottom:32px;display:grid}.stat-card{background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-light);transition:var(--transition);padding:24px}.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-card-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.stat-card-icon{border-radius:var(--radius-md);justify-content:center;align-items:center;width:44px;height:44px;font-size:1.25rem;display:flex}.stat-card-icon.blue{background:var(--tech-blue-light);color:var(--tech-blue)}.stat-card-icon.green{background:var(--success-light);color:var(--success)}.stat-card-icon.orange{background:var(--warning-light);color:var(--warning)}.stat-card-icon.red{background:var(--danger-light);color:var(--danger)}.stat-card-value{color:var(--text-primary);font-size:1.75rem;font-weight:800}.stat-card-label{color:var(--text-muted);margin-top:4px;font-size:.8125rem}.course-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;display:grid}.course-card{background:var(--bg-card);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);border:1px solid var(--border-light);transition:var(--transition);overflow:hidden}.course-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px)}.course-card-thumb{object-fit:cover;background:linear-gradient(135deg, var(--dark-navy), var(--tech-blue));width:100%;height:180px}.course-card-body{padding:20px}.course-card-category{border-radius:var(--radius-full);background:var(--tech-blue-light);color:var(--tech-blue);margin-bottom:8px;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-block}.course-card-title{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:8px;font-size:1.125rem;font-weight:700;display:-webkit-box;overflow:hidden}.course-card-meta{color:var(--text-muted);align-items:center;gap:16px;font-size:.8125rem;display:flex}.course-card-footer{border-top:1px solid var(--border-light);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.course-card-price{color:var(--tech-blue);font-size:1.25rem;font-weight:800}.pagination{justify-content:center;align-items:center;gap:8px;margin-top:32px;display:flex}.pagination-btn{border-radius:var(--radius-sm);width:36px;height:36px;color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border-default);transition:var(--transition-fast);justify-content:center;align-items:center;font-size:.875rem;font-weight:600;display:flex}.pagination-btn:hover{border-color:var(--tech-blue);color:var(--tech-blue)}.pagination-btn.active{background:var(--tech-blue);color:var(--text-white);border-color:var(--tech-blue)}.skeleton{border-radius:var(--radius-sm);background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%) 0 0/200% 100%;animation:1.5s ease-in-out infinite shimmer}.skeleton-text{width:100%;height:14px;margin-bottom:8px}.skeleton-title{width:60%;height:22px;margin-bottom:12px}.skeleton-avatar{border-radius:var(--radius-full);width:40px;height:40px}.skeleton-card{border-radius:var(--radius-xl);height:200px}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:64px 32px;display:flex}.empty-state-icon{color:var(--text-muted);margin-bottom:16px;font-size:3rem}.empty-state h3{color:var(--text-primary);margin-bottom:8px}.empty-state p{color:var(--text-muted);max-width:400px}.progress-bar{background:var(--bg-input);border-radius:var(--radius-full);width:100%;height:6px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg, var(--tech-blue), #7c3aed);border-radius:var(--radius-full);height:100%;transition:width .5s}.avatar{border-radius:var(--radius-full);object-fit:cover;color:var(--text-white);background:linear-gradient(135deg, var(--tech-blue), #7c3aed);justify-content:center;align-items:center;font-weight:700;display:flex}.avatar-sm{width:32px;height:32px;font-size:.75rem}.avatar-md{width:40px;height:40px;font-size:.875rem}.avatar-lg{width:56px;height:56px;font-size:1.25rem}.toast-container{z-index:9999;flex-direction:column;gap:12px;display:flex;position:fixed;top:20px;right:20px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{to{transform:rotate(360deg)}}.spinner{border:3px solid var(--border-default);border-top-color:var(--tech-blue);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}.spinner-sm{border-width:2px;width:16px;height:16px}.spinner-lg{border-width:4px;width:40px;height:40px}@media (max-width:1024px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0}.page-content{padding:20px}}@media (max-width:768px){h1{font-size:1.75rem}h2{font-size:1.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.course-grid{grid-template-columns:1fr}}@media (max-width:480px){.stats-grid{grid-template-columns:1fr}.page-content{padding:16px}.topbar{padding:0 16px}}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-sm{gap:8px}.gap-md{gap:16px}.gap-lg{gap:24px}.gap-xl{gap:32px}.w-full{width:100%}.text-center{text-align:center}.text-right{text-align:right}.font-semibold{font-weight:600}.font-bold{font-weight:700}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.mt-sm{margin-top:8px}.mt-md{margin-top:16px}.mt-lg{margin-top:24px}.mb-sm{margin-bottom:8px}.mb-md{margin-bottom:16px}.mb-lg{margin-bottom:24px}.p-md{padding:16px}.p-lg{padding:24px}.hidden{display:none}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}